Crema is an important indicator of the success or failure of Espresso. How much is a Starbucks espresso?

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Espresso Coffee extraction detailed steps Italian concentration common sense

A standard Espresso is only about one ounce and is covered with a thin layer of foam called "Crema". The more detailed the foam, the better, like a layer of colored cream and a dark brown color close to ochre red; if you see a layer of golden foam successfully extracted, it may be that the coffee beans are not fresh enough and the Espresso will not be thick. In addition, the thickness of Crema should account for at least 10% of coffee, and it can last for more than 3 minutes without cracks.

People who like to drink Espresso regard Crema as an indicator of quality. In fact, it is composed of a large group of small foams, and the structure of each small foam is surrounded by a layer of water-based film around carbon dioxide. Of course, fresh coffee has more carbon dioxide inside, and espresso brewed with it also contains more Crema, which makes it feel "velvety and soft". The water-based film contains a large amount of water, which will be released very quickly, so that the film can not be supported and burst, and the Crema will disappear. No wonder Italians always wait at the bar and finish that Espresso in 30 seconds.

Tips for successful cooking of Espresso:

◎ coffee beans must be fresh

◎ coffee powder must be properly filled and pressed.

◎ must adopt espresso grindness (Espresso Grind).

◎ uses concentrated mixed coffee beans (Espresso Blend)

◎ uses moderately roasted coffee beans

(Chinese prefer coffee beans with heavy baking and no sour taste.)

Starbucks adds basic espresso-what's the taste of Blonde Espresso? The comments of the masses lit up!